Finding the Third Proportional to 620,896 and 1,323,200

Step by Step Solution

1. Step 1: Write the proportion equation
   620,896 : 1,323,200 = 1,323,200 : x
2. Step 2: Convert to fraction form
   620,896/1,323,200 = 1,323,200/x
3. Step 3: Cross multiply
   620,896x = 1,323,200 × 1,323,200
4. Step 4: Simplify right side
   620,896x = 1,750,858,240,000
5. Step 5: Solve for x
   x = 1,750,858,240,000/620,896
6. Step 6: Final answer
   x = 2,819,889.71